play2-java framework tests

1. Add new test applications in subdirectories named either play2-java or play2-java-orm.
2. Edit frameworks/Java/play2-java/generate_config.py and add configuration for the new test applications.
3. Run python frameworks/Java/play2-java/generate_config.py to generate a new benchmark_config.json file and to generate a setup_*.py file for your test application.